Các câu hỏi tương tự
mot thua ruong hinh thang co chieu cao la 10m hieu cua 2 canh day la 22m.Nguoi ta mo rong thua ruong do thanh hinh chu nhat co chieu daibang canh day lon va chieu rong bang chieu cao .Dien tich duoc mo rong bang 1phan7 dien tich cu .phan dat mo mo rong them ve phia tay phai la 90m vuong .Tinh day lon cua thua ruong cu
Mot thua ruong hinh thang vuong co day be bang chieu cao va bang mot nua day lon .Thua ruong do duoc mo rong thanh hinh chu nhat. Tinh dien tich hinh thang biet dien dien tich phan mo rong la 5dam2.
mot thua ruong hinh thang co dien tich bang 361,8m2 , day lon hon day nho 13,5m . Tinh do dai moi day bietneu tang day lon 5,6m thi dien tich thua ruong tang then 33,56m2
mot thua ruong hinh thang co dien tich 4200m2 va co day lon gap 3 lan day be . neu giam day be 15 m thi dien tich thua ruong se bi giam 450m2 . tinh do dai moi day cua thua ruong hinh thang tren
mot thua ruong hinh thang co day lon la 62,5 m,day be bang 2/5 day lon.nguoi ta mo rong thua ruong hinh thang bang cach keo dai day be them 12,4 m.day lon them 8 m nen dien tich thua ruong tang them 367,2 m vuong.hoi dien tich ban dau cua thua ruong la?
loi giai phep tinh
Cho mot thua ruong hinh thang co day lon 62,5m,day be bang 2/5 day lon.Nguoi ta mo rong thua ruong bang cach keo dai day be them 12,4m va day lon them 8m nen dien tich thua ruong tang them 367,2m2.Tinh dien tich thua ruong hinh thang luc dau?
mot thua ruong hinh thang co day lon hon day be 8m co chieu cao la 32m nay nguoi ta dap mot con duong chay qua thua ruong phan con lai la hinh thang vuong co dien tich kem dien tich ban dau la 96m2 de phan con lai tro thanh mot thua ruong hinh chu nhat ma dien tich bang dien tich ban dau thi ta phai thay doi hai day cua hinh thang nhu the nao
Mot thua ruong hinh thang co day lon 62.5m,day be bang 2/5 day lon. Nguoi tamo rong thua ruong bang cach keo dai day be them12.4m va day lon them 8m nen dien tich thua ruong tang them 367.2m. Tinh dien tich thua ruong hinh thang ban dau
1 thua ruong hinh tang co day nho la 18,6m , day lon bang 4/3 day nho . Neu keo dai day lon them, 5 m thi dien tich tang them , 22,5 m2
a) Tinh dien tich thua ruong do
b) Vu vua qua ngoi ta cay tren thuc ruong do, cu 100m2 thu duoc 65,5km lua , Hay tinh xem vu vua qua tren thua ruong nguoi ta thu duoc bao nhieu ta thoc